Ranking Undead Templates

[Thealtruistorc]

One thing that is rarely ever discussed in pathfinder is the variety of powerful undead creatures in the game. There are quite a few intelligent undead beings in the game, with a wide variety of abilities to offer. Again, there has been a distinct lack of discussion on this subject, so I was wondering which types of intelligent undead are the most potent? I compiled a list here of what are the most noteworthy templates put out by Paizo, and would like your thoughts on which are the most interesting/powerful.

Ghost (http://www.d20pfsrd.com/bestiary/monster-listings/templates/ghost)
Lich (http://www.d20pfsrd.com/bestiary/monster-listings/templates/lich)
Vampire (http://www.d20pfsrd.com/bestiary/monster-listings/templates/vampire)
Nosferatu (http://www.d20pfsrd.com/bestiary/monster-listings/templates/nosferatu) (Bestiary 4)
Jiang Shi (http://www.d20pfsrd.com/bestiary/monster-listings/templates/vampire-jiang-shi) (Bestiary 3)
Graveknight (http://www.d20pfsrd.com/bestiary/monster-listings/templates/graveknight-cr-2) (Bestiary 3)
Penanggalen (http://www.d20pfsrd.com/bestiary/monster-listings/templates/penanggalen-cr-1) (Bestiary 3)
Skeletal Champion (http://www.d20pfsrd.com/bestiary/monster-listings/templates/skeletal-champion-CR-1)
Juju (http://www.d20pfsrd.com/bestiary/monster-listings/templates/zombie-juju-cr-1)/Trench (http://www.d20pfsrd.com/bestiary/monster-listings/templates/trench-zombie) Zombie (Bestiary 2/Rasputin Must Die)
Vetala (http://www.d20pfsrd.com/bestiary/monster-listings/templates/vetala-vampire-cr-2) (Inner Sea Bestiary)

I, personally, rank the Nosferatu and Graveknight as the strongest, given their wide variety of abilities and fairly hard-to-exploit weaknesses (Nosferatus are really, REALLY good at escaping danger). What about ye all? Also, if I'm missing any, feel free to add them.

[Psyren]

Ghost is by far the most powerful. Any alignment, you're functionally impossible to kill with the right purpose, all your class levels and gear, and constant incorporeality/etherealness. Even a lich is easier to kill than a ghost.

[Aldrakan]

Ghost is by far the most powerful. Any alignment, you're functionally impossible to kill with the right purpose, all your class levels and gear, and constant incorporeality/etherealness. Even a lich is easier to kill than a ghost.

Agreed, the main drawbacks of the ghost are simply that there's no reliable way to become one, and that you're supposed to be driven to fulfil your purpose, meaning you have to conspire at your own destruction. Come back to do something impossible, keep an eye on your body, invest in a pair of ghost touch gloves, and you're golden. Look at Geb, who's managed to fit ruling a kingdom in between, presumably, researching increasingly powerful and esoteric scrying spells then refusing to believe them when they tell him Nex has been dead for thousands of years and he should move on already.